Ballistics expert, Calvin Goddard

Credit: en.wikipedia.org/wiki/Calvin_Goddard(Ballistics)
article: St Valentine's Day Massacre 		Other images from this article
A Thompson sub-machine gun used in the shooting. Chicago Gangster, Al Capone. Southside mobster, Bugs Moran Ballistics expert, Calvin Goddard
Ballistics expert, Calvin Goddard, en.wikipedia.org/wiki/Calvin_Goddard(Ballistics)